1. Royal Brompton and Harefield Hospitals, 4964, Harefield Pulmonary Rehabilitation Team, London, United Kingdom of Great Britain and Northern Ireland
2. Royal Brompton and Harefield NHS Foundation Trust, 4964, Harefield Respiratory Research Group, London, United Kingdom of Great Britain and Northern Ireland
3. Imperial College London, 4615, National Heart and Lung Institute, London, London, United Kingdom of Great Britain and Northern Ireland
4. King's College London, 4616, Faculty of Life Sciences and Medicine, London, United Kingdom of Great Britain and Northern Ireland
5. Brunel University London, 3890, College of Health Medicine and Life Sciences, Uxbridge, United Kingdom of Great Britain and Northern Ireland
6. Royal Brompton and Harefield NHS Foundation Trust, 4964, Harefield Respiratory Research Group, London, United Kingdom of Great Britain and Northern Ireland;